From: Frank Johnston (fjohn@us.ibm.com)
Date: Mon Jul 12 2004 - 16:10:14 CDT
IBM eServer p5 570 (1900 MHz, 8 cpu, 36MB L3 cache) with DDR2 memory.
Requesting Large Pages
Setting up for 2 CPUs per module
Number of segments per array = 4
CPU binding list : 0 2 4 6
Shared Segment Pointer = 504403158265495552
Shared Segment Pointer = 504403159339237376
Shared Segment Pointer = 504403160412979200
Segment Size (B) = 268435456 (MB = 256 )
Array Size (B) = 1073741824 (MB = 1024 )
Array Size (DW) = 134217728
Num_threads = 8
Num_threads = 8
Num_threads = 8
Num_threads = 8
Num_threads = 8
Num_threads = 8
Num_threads = 8
Num_threads = 8
rebind: num_parthds is 8
Starting Initialization
Done With Initialization
a(1) 1.00000000000000000
b(M) 1.00000000000000000
c(M) 1.00000000000000000
Incremental Offset = 1536
Number of Threads = 8
----------------------------------------------
Double precision appears to have 16 digits of accuracy
Assuming 8 bytes per DOUBLE PRECISION word
----------------------------------------------
Array size = 134149120
Offset = 0
The total memory requirement is 3070 MB
You are running each test 5 times
The *best* time for each test is used
----------------------------------------------------
Your clock granularity appears to be less than one microsecond
Your clock granularity/precision appears to be 1 microseconds
The tests below will each take a time on the order
of 48264 microseconds
(= 48264 clock ticks)
Increase the size of the arrays if this shows that
you are not getting at least 20 clock ticks per test.
----------------------------------------------------
WARNING -- The above is only a rough guideline.
For best results, please be sure you know the
precision of your system timer.
----------------------------------------------------
Function Rate (MB/s) RMS time Min time Max time
Copy: 38737.1668 .2149 .0554 .0594
Scale: 38506.3626 .2150 .0557 .0615
Add: 42548.4284 .2255 .0757 .0761
Triad: 43037.4145 .2251 .0748 .0760
Sum of a is = 203738455068750.000
Sum of b is = 40747691013750.0000
Sum of c is = 54330254685000.0000
This archive was generated by hypermail 2.1.4 : Tue Jul 13 2004 - 08:50:46 CDT